Gemometrics GemPen®Premium Diamond Screener

Watch the video

To work with ‘GemPen® Premium’, formal gemmological knowledge and understanding of transition elements is required to effectively interpret the results on rubies & sapphires.  ‘GemPen® Premium’ should always be used in combination with other gemmological instruments when screening rubies & sapphires for synthetics & treatments.

• Indicates HPHT & CVD lab created diamonds with Filter 1 (included)
• Indicates HPHT colour enhancement treatment on natural diamonds
• Works on rough, polished & mounted gemstones
• All gemstone sizes: 0.01ct-10.00+
• Diamond colour range:  D-M
• Screens 100’s of stones in a matter of minutes
• Includes all screening filters (Filter 1, Filter 2, Filter 3, Filter 4)
• Travel Case / Darkroom to check gemstones on the go
• Portable pocket size / purse size design
• Battery powered & USB rechargeable
• Access to GemPen® Academy
• Innovated by a Gemmologist for Gemmologists
• Applications:  in the field, wholesale diamond & gemstone buyers, gemmological labs & educational institutes, appraisal services providers, screening while shopping at trade shows & when receiving set goods, pawn shops, auction houses, jewellery repair & custom design houses, jewellers, all natural & lab created diamond and gemstone retailers

GemPen® Premium is the most complete kit that we have to offer; it includes all the different filters to screen and analyze Diamonds and to give indications on Corundum (Rubies & Sapphires).  The included LW Filter 4 (in combination with Filter 1) helps the user to distinguish between a naturally fluorescing diamond, lab created diamonds or an HPHT treated natural diamond.  Filters 2 and 3 are used in combination with Filter 1 and 4 to screen for synthetics and flame-fusion (Verneuil), as well as heat, beryllium, and other treatments.